English verb conjugation
COULD BALK

Regular verb: balk - balked - balked

Affirmation

Simple form	V-ing form
I could balk you could balk she could balk we could balk you could balk they could balk	I could be balking you could be balking she could be balking we could be balking you could be balking they could be balking
Perfect	V-ing perfect
I could have balked you could have balked she could have balked we could have balked you could have balked they could have balked	I could have been balking you could have been balking she could have been balking we could have been balking you could have been balking they could have been balking

Negation

Simple form	V-ing form
I could not balk you could not balk she could not balk we could not balk you could not balk they could not balk	I could not be balking you could not be balking she could not be balking we could not be balking you could not be balking they could not be balking
Perfect	V-ing perfect
I could not have balked you could not have balked she could not have balked we could not have balked you could not have balked they could not have balked	I could not have been balking you could not have been balking she could not have been balking we could not have been balking you could not have been balking they could not have been balking

Interrogative form

Simple form	V-ing form
could I balk? could you balk? could she balk? could we balk? could you balk? could they balk?	could I be balking? could you be balking? could she be balking? could we be balking? could you be balking? could they be balking?
Perfect	V-ing perfect
could I have balked? could you have balked? could she have balked? could we have balked? could you have balked? could they have balked?	could I have been balking? could you have been balking? could she have been balking? could we have been balking? could you have been balking? could they have been balking?

Interro-negative form

Simple form	V-ing form
could I not balk? could you not balk? could she not balk? could we not balk? could you not balk? could they not balk?	could I not be balking? could you not be balking? could she not be balking? could we not be balking? could you not be balking? could they not be balking?
Perfect	V-ing perfect
could I not have balked? could you not have balked? could she not have balked? could we not have balked? could you not have balked? could they not have balked?	could I not have been balking? could you not have been balking? could she not have been balking? could we not have been balking? could you not have been balking? could they not have been balking?